Power Line Communications (PLC) is used for information exchange over the lines installed for del... more Power Line Communications (PLC) is used for information exchange over the lines installed for delivering the electrical power. Inhome PLC is a technology which delivers telecom services to every corner of a household through already existing electrical wiring. In recent years, PLC has emerged as a potential candidate for domestic high bit rate services. The current inhome PLC technology, based on Single-Input Single-Output (SISO) configuration, under achieves the capacity offered by the physical PLC channel. The inhome PLC channel offers multiple signal feed ports as, usually, it comprises of three wires: Phase, Neutral and Protective Earth. The measurements and results presented in this paper demonstrate that up to 90% enhancement in inhome PLC channel capacity is possible by using multiple-input multiple-output (MIMO) technique.
In the recent years, the Multiple-Input Multiple-Output (MIMO) techniques have emerged as an impo... more In the recent years, the Multiple-Input Multiple-Output (MIMO) techniques have emerged as an important research field for enhancing the throughput of in-home Power Line Communication (PLC) systems by exploiting the additional Protective Earth wire. The development of such systems requires an accurate description of the noise in the propagation channel. This paper presents two statistical models for the background noise found in MIMO PLC channels, based on noise measurements performed in five houses. In the proposed models, the spectral characteristics of MIMO background noise are presented, in 2-150 MHz range, following two existing formalisms for Single-Input Single-Output (SISO) PLC noise.
Multiple-Input Multiple-Output (MIMO) techniques have recently become an important research field... more Multiple-Input Multiple-Output (MIMO) techniques have recently become an important research field for enhancing the performance of in-home Power Line Communication (PLC) systems by exploiting the additional Protective Earth wire. The development of such systems requires an accurate description of the propagation channel. This paper presents a statistical model for the MIMO PLC channel, based on an extensive set of MIMO channel measurements performed in five houses. In this model, the Phase-Neutral link is described as a multipath channel with frequency variable attenuation, following a formalism first proposed by Zimmermann and extended statistically by Tonello. The full channel matrix is obtained by suitably modifying the path phase. The resulting channel matches our experimental measurements, and reproduces the correlation observed in the measured MIMO channel matrix.
Multiple-Input Multiple-Output (MIMO) techniques allow an unprecedented increase in coverage and ... more Multiple-Input Multiple-Output (MIMO) techniques allow an unprecedented increase in coverage and throughput for Power Line Communications (PLC), by exploiting the diversity inherent to the three-wire electrical network. To evaluate the performance of such systems, an accurate knowledge of the transmission medium properties is required. This paper presents an experimental study of the MIMO PLC noise characteristics conducted in the framework
Power Line Communications (PLC) is used for information exchange over the lines installed for del... more Power Line Communications (PLC) is used for information exchange over the lines installed for delivering the electrical power. Inhome PLC is a technology which delivers telecom services to every corner of a household through already existing electrical wiring. In recent years, PLC has emerged as a potential candidate for domestic high bit rate services. The current inhome PLC technology, based on Single-Input Single-Output (SISO) configuration, under achieves the capacity offered by the physical PLC channel. The inhome PLC channel offers multiple signal feed ports as, usually, it comprises of three wires: Phase, Neutral and Protective Earth. The measurements and results presented in this paper demonstrate that up to 90% enhancement in inhome PLC channel capacity is possible by using multiple-input multiple-output (MIMO) technique.
In the recent years, the Multiple-Input Multiple-Output (MIMO) techniques have emerged as an impo... more In the recent years, the Multiple-Input Multiple-Output (MIMO) techniques have emerged as an important research field for enhancing the throughput of in-home Power Line Communication (PLC) systems by exploiting the additional Protective Earth wire. The development of such systems requires an accurate description of the noise in the propagation channel. This paper presents two statistical models for the background noise found in MIMO PLC channels, based on noise measurements performed in five houses. In the proposed models, the spectral characteristics of MIMO background noise are presented, in 2-150 MHz range, following two existing formalisms for Single-Input Single-Output (SISO) PLC noise.
Multiple-Input Multiple-Output (MIMO) techniques have recently become an important research field... more Multiple-Input Multiple-Output (MIMO) techniques have recently become an important research field for enhancing the performance of in-home Power Line Communication (PLC) systems by exploiting the additional Protective Earth wire. The development of such systems requires an accurate description of the propagation channel. This paper presents a statistical model for the MIMO PLC channel, based on an extensive set of MIMO channel measurements performed in five houses. In this model, the Phase-Neutral link is described as a multipath channel with frequency variable attenuation, following a formalism first proposed by Zimmermann and extended statistically by Tonello. The full channel matrix is obtained by suitably modifying the path phase. The resulting channel matches our experimental measurements, and reproduces the correlation observed in the measured MIMO channel matrix.
Multiple-Input Multiple-Output (MIMO) techniques allow an unprecedented increase in coverage and ... more Multiple-Input Multiple-Output (MIMO) techniques allow an unprecedented increase in coverage and throughput for Power Line Communications (PLC), by exploiting the diversity inherent to the three-wire electrical network. To evaluate the performance of such systems, an accurate knowledge of the transmission medium properties is required. This paper presents an experimental study of the MIMO PLC noise characteristics conducted in the framework
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Papers by Rehan Hashmat